Bump react-icons from 4.1.0 to 4.2.0 in /ui

Bumps [react-icons](https://github.com/react-icons/react-icons) from 4.1.0 to 4.2.0.
- [Release notes](https://github.com/react-icons/react-icons/releases)
- [Commits](https://github.com/react-icons/react-icons/compare/v4.1.0...v4.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

ui/package.json

@@ -19,7 +19,7 @@
     "react-drag-listview": "^0.1.8",
     "react-ga": "^3.3.0",
     "react-hotkeys": "^2.0.0",
-    "react-icons": "^4.1.0",
+    "react-icons": "^4.2.0",
     "react-image-lightbox": "^5.1.1",
     "react-jinke-music-player": "^4.21.2",
     "react-measure": "^2.5.2",